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. 2019 Sep 26;8(10):e1233–e1237. doi: 10.1016/j.eats.2019.06.013

Table 1.

Ellman Classification System for the Assessment of Partial-Thickness Rotator Cuff Tears

Grade 1 Partial tear <3 mm deep
Grade 2 Partial tear 3 to 6 mm deep and depth not exceeding one-half of the tendon thickness
Grade 3 Partial tear >6 mm deep